Gaya APA
Arifin, M, Z.
(2018).
Developing English Skill
(
Edisi Terbaru)
.
Yogyakarta:
ANDI.
Gaya MLA
Arifin, M., Zainul.
"Developing English Skill".
Edisi Terbaru
Yogyakarta:
ANDI,
2018.
Text.